13 Jan '18, 3pm

Generating a High #DC Output #Voltage from a Low Input Supply

Driven by portable and wearable applications, the trend in many designs is moving firmly in the direction of supply voltages of 3.6 volts or lower. However, many portable devices have specific functions that require higher voltages, requiring designers to up-convert to the required levels as efficiently as possible through optimal implementation of DC-DC boost converters. This article will review the purpose of boost DC-DC regulators and describe their topology. It will then introduce example devices and discuss the design techniques and tradeoffs needed to develop the optimum design for a portable or wearable application. The role of DC-DC boost converters A typical wearable or otherwise portable device uses a Li-ion cell with a nominal output of 3.6 volts DC. Most battery-powered applications rely on one or several Li-ion cells connected in series as their primary supply...

Full article: https://www.digikey.com/en/articles/techzone/2018/jan/gen...

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